If you are in a raid that killed a boss, but you didn't touch the boss at all, you will get a message saying "You are about to be saved to X/Y bosses. Stay or leave?".
At least that happened to me in Ulduar where the group killed a boss while I did trash.

Well, I personally do still have some common decency.
I just go around, doing my own thing... and if I see anybody who needs help or anything, I tend to go try and help. Most oftenly without any personal gain... apart from satisfaction for helping a fellow person out.
If I get something out of it (gold rewards, nice transmog item or whatever) then that's really nice! but it's not something I do this for.
It's a social game, and I try to be as social as possible.

It's a rare moment in WoW when you find others who are not just in it for themselves. They are turning the MMO into their own personal solo game and getting points for being a dbag in the process. Best thing I ever did was roll a Druid. I can solo damn near anything and seldom rely on friends or guildies. My other option would have been prot pally or blood DK, but I like the idea of not having to leave flight form when gathering herbs or quest items.

Do yourself a favor and either run solo, or go with someone you know and trust.

Nah Cybran as been saying LFD ruined the game since bread could be toasted. He has no clue what it was like before LFD, All LFD did was making dungeon group easier to get into for people who don't have people to queue with right away. I had a guild who I could always roll with but it sucked when 1 of us had to spam guild chat or trade for an extra person. I can not fathom to know what it was like for people that didnt have a bunch of people to group with them all the time.

And he's wrong. Quite a few people on this very forum and all across reviewing sites are friggin ecstatic that the game moved on from the style of Burning Crusade. You might not like it, and that's perfectly fine, but if this game turned back into a pile of attunements with extremely difficult heroic dungeons and no LFD/LFR then I'd unsub before that expansion was even released. (Then I'd have the decency to not post on wow forums complaining about a game I don't own, unlike several talkative users on here.)